I couldn't view images at all for a while there (except for ones I myself posted, oddly enough), but I cleared my cache and it works. But testing the picture servers results in picture & thumbnails16 still coming up blank, so I think something might be wrong with those. It said to report such things, but I can't figure out to whom it is reported. So I just made a post here, so someone might be aware of it .

Edit: And it's started up again- the pictures no longer show up in my browser. Only by going into "Test Servers" is it working, and the 16s are still the ones acting up. The "HTTP" version of the site works just fine.